I know it's early for this...

[EMTkid]

I've never tried this one but it should work very well in theory... If you freeze a cheap can of shaving cream (like old styled gilette) until its nicely solid you can cut off the bottom with a can opener and leave it in someone's drawer until it thaws and expands

[Jake D]

how about you get tuna and put it right under the windshield on someones car by the ac intake vents.  .

I kew a girl in college who did this, except put the tuna in the car hubcaps, to an ex boyfriend...and it wasnt for april fools...

And did you have a hard time getting the tuna out?

How about this one I saw Ryan Dunn do: Roll up their anti-perspirant  an inch or so and cut it off.  Twist it back down and pack it with phili cream cheese.  Then sculpt the end and put the cap back on.  It is called the sticky pits.

[aaronstj]

I've never tried this one but it should work very well in theory... If you freeze a cheap can of shaving cream (like old styled gilette) until its nicely solid you can cut off the bottom with a can opener and leave it in someone's drawer until it thaws and expands

It works in practice, too (kinda).  They tried it on Cockeyed.com.

[makenzie71]

I've never tried this one but it should work very well in theory... If you freeze a cheap can of shaving cream (like old styled gilette) until its nicely solid you can cut off the bottom with a can opener and leave it in someone's drawer until it thaws and expands

If you get a 12oz+ can it'll actually coat the interior of a small car.

Now I gotta say, even the piss-puck idea is one to be avoided.  Using bodily wastes as a practicle joke is lame all together.  It's like you couldn't think of anything clever so you decided to pee on something...

For some good ones, though...

Put a crushed alka seltzer or alka seltzer powder into the non-dairy creamer pot...when they pour it in their coffee it'll fizz like mad..

Jello in the toilet.

Take the persons, apartment, bedroom or office and cover everything with aluminum foil. Walls, ceiling, floor, pencils, furniture, toothbrush, bar of soap, bed, blankets, pillows, everything. Mold it to the item so you can still see what it is, except now it is covered with foil. i saw it before & was absolutly hilarious.

(great graduation prank)Chain up your principals car and put a giant pad lock on it so that the doors cant be opened and then as each student walks the stage hand your principal a key and let one of the keys be the one the undoes the lock.

Shrink wrap their car/bike/whatever.  I actually like doing this to random sleeping people at rest stops when I'm road-tripping.
~one time we had one guy this other guy to a tree under the impression that we were going to shrink wrap the pinned guy to said tree.  Then we started shrink wrapping them both to the tree.  The pinned guy managed to slip out but we still got one of them.

While cruising along at night on a roadtrip, wait for your co-pilot to fall asleep and find one of those rest stops with a semi parked.  Creep up in front of the semi at like 5mph and then scream OH MY GOD!!! and slam on the brakes.

I got more but I'm mentally fried at the moment....

[aaronstj]

If you get a 12oz+ can it'll actually coat the interior of a small car.

Experimental evidence disagrees.  From the link I posted above, they got about 12 cups of shaving cream from a can.  Certainly not enough to coat the inside of a car or any size, but enough to leave a pile on the drivers seat.

[makenzie71]

...hmmmm...maybe it was a bigger can.  We had a nice 1" layer covering both front seats, console and part of the dash of an RX-7.

[SuZuki10]

Hey Mak, can you explain "jello in the toilet" for me please?

[makenzie71]

you can buy clear gelatin mix...jello's got a few clear varieties.  Toss a packet of the mix into their toilet.  After it turns to jello, there's only a few ways to effectively get it out.

[SuZuki10]

Nice...now imagine if someone pooped on that!

[aaronstj]

...hmmmm...maybe it was a bigger can.  We had a nice 1" layer covering both front seats, console and part of the dash of an RX-7.

Where'd you put the can?  I can imagine if would start to melt and slide down over the dash, console, and seats, if you had it up on the dashboard.  The ammount cockeyed.com got seems like enough to coat a largeish area, but certainly not fill a car, like some will claim.

[makenzie71]

well it doesn't really "fill" the car...but it makes a plenty big mess.

We cut it up as soon as we slid the cylinder out of the can...one of the "discs" went on the dash...the rest in the seats and stuff.

[aaronstj]

We cut it up as soon as we slid the cylinder out of the can...one of the "discs" went on the dash...the rest in the seats and stuff.

That seems like a good strategy.  

Hmm...  I wonder how many cans it would take to fill a smallish car.  It's not like shaving cream is very expensive.

I can't imagine any of this is terribly good for the interior.  But I guess it is pretty much just soap.

[weaselnoze]

take a dump in the top part of someones toilet instead of the bowl..

AKA 'the upper decker'.   seriously thats some funny shaZam!.

[SuZuki10]

You mean the part where you have to take off that heavy ceramic lid?

[weaselnoze]

exactly.  shitty water forever.  been there done that

[EMTkid]

FROZEN Shaving cream - Ok, I've got a theory and I think I'm actually going to test this one out. Shaving cream will expand as it thaws and the expansion would be subject to ambient temp as well as initial volume.

If one were to, instead of a frozen cylinder of shaving cream removed from the can, take the entire frozen can and punch small hole(s) in its surface wouldn't the cream be more likely to be flung further therefore creating more hillarity? I think coating the inside of a car is cruel, but certainly desk drawers, brief cases, backpacks or other small containers that could easily be coated...

Anyone tried it? I'm just looking for a way for it to be a little better than a lump of foam in a bowl as on the link above.

[makenzie71]

Holes will not create squirtage...it doesn't expand that quickly.

I have done it to someone's desk drawer, though...that was funny.

empty it first.

[The Buddha]

Jello in toilet isn't that sharp a trick ... waste of jello ... pour in hot water and it melts and runs ... Shaving cream in car is OK, but the nest I ahve seen is ... insulating spray foam on a persons face and hands is just the nastiest ...
Cool.
Srinath.

[annguyen1981]

i've got it.  ceiling fans.  at the end of the day when everyone leaves turn off the ceiling fan and place piles of the paper holes on the top of the blades.  when someone comes in and turns on the fans in the morning, u have a shower of confetti!!  i did this in middle school and almost go suspended

I love this one!!  Too bad I don't work/live anywhere near a ceiling fan.  

[ktrim]

spay foam in a locked tool box is very effective,  most boxes I've seen have a small gap between the drawers.  you attach a long plastic hose to the spray foam insert to the rear of the drawer and filler up!!!!  then you get the enjoyment of watching the person cut there tools out of the foam and dig it out of all the sockets.  I also shrink wrapped a friends desk once.  we shrink wrapped a sleeping warehouse guy to his chair,  then put him on the top shelf of the warehouse with a fork lift.   THis ones cool also but be carefull (may damage things beyond repair).  Loop 14 gauge wire over the rafters of a shop/warehouse.  clamp both ends of the wire in a co-workers cordless drill.  wrap a wire tie around the trigger and tighten.  the drill will wind the wire up and pull itself up to the cieling.  the problem arises if the wire breaks and the drill crashes to the floor from 20' up.  or post a married friends phone number on a singles looking for sex web site.